Closes' mono-wheel stretcher, in open position: side view, showing the stretcher resting on four fold-out legs, with one large central wheel in contact with the ground. Photograph, 1915/1918.

    Date:
    1915-1918
    Reference:
    581919i

    Licence: In copyright

    Credit: Closes' mono-wheel stretcher, in open position: side view, showing the stretcher resting on four fold-out legs, with one large central wheel in contact with the ground. Photograph, 1915/1918. Wellcome Collection. Source: Wellcome Collection.

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